PIC16C554T-IPT View Datasheet(PDF) - Microchip Technology
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PIC16C554T-IPT Datasheet PDF : 108 Pages
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PIC16C55X
TABLE 6-5: INITIALIZATION CONDITION FOR SPECIAL REGISTERS
Condition
Program
Counter
STATUS
Register
PCON
Register
Power-on Reset
000h
0001 1xxx
---- --0-
MCLR Reset during normal operation
000h
000u uuuu
---- --u-
MCLR Reset during SLEEP
000h
0001 0uuu
---- --u-
WDT Reset
000h
0000 uuuu
---- --u-
WDT Wake-up
Interrupt Wake-up from SLEEP
PC + 1
PC + 1(1)
uuu0 0uuu
uuu1 0uuu
---- --u-
---- --u-
Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’, q = value depends on condition.
Note 1: When the wake-up is due to an interrupt and global enable bit, GIE is set, the PC is loaded with the inter-
rupt vector (0004h) after execution of PC+1.
TABLE 6-6: INITIALIZATION CONDITION FOR REGISTERS
Register
Address
Power-on Reset
MCLR Reset during normal
operation
MCLR Reset during SLEEP
WDT Reset
Wake-up from SLEEP
through interrupt
Wake-up from SLEEP
through WDT timeout
W
—
xxxx xxxx
uuuu uuuu
uuuu uuuu
INDF
00h
—
—
—
TMR0
PCL
STATUS
01h
xxxx xxxx
02h
0000 0000
03h
0001 1xxx
uuuu uuuu
0000 0000
000q quuu(3)
uuuu uuuu
PC + 1(2)
uuuq quuu(3)
FSR
04h
xxxx xxxx
uuuu uuuu
uuuu uuuu
PORTA
05h
---x xxxx
---u uuuu
---u uuuu
PORTB
06h
xxxx xxxx
uuuu uuuu
uuuu uuuu
PORTC(4)
06h
xxxx xxxx
uuuu uuuu
uuuu uuuu
PCLATH
INTCON
0Ah
---0 0000
0Bh
0000 000x
---0 0000
0000 000u
---u uuuu
uuuu uuuu(1)
OPTION
81h
1111 1111
1111 1111
uuuu uuuu
TRISA
85h
---1 1111
---1 1111
---u uuuu
TRISB
86h
1111 1111
1111 1111
uuuu uuuu
TRISC(4)
86h
1111 1111
1111 1111
uuuu uuuu
PCON
8Eh
---- --0-
---- --u-
---- --u-
Legend: u = unchanged, x = unknown, - = unimplemented bit, reads as ‘0’, q = value depends on condition.
Note 1: One or more bits in INTCON will be affected (to cause wake-up).
2: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt
vector (0004h).
3: See Table 6-5 for RESET value for specific condition.
4: PIC16C557 only.
DS40143E-page 38
Preliminary
1996-2013 Microchip Technology Inc.
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